[PATCH 4/4]: Add generic prototype for md_pcrel_from_section

Gunther Nikl gnikl@justmail.de
Tue Apr 7 11:15:13 GMT 2020 

[resent with correct reference]

This patch removes the need for target headers to provide a custom prototype
for md_pcrel_from_section.

The following ports use the same interface version but with the port name as
a function prefix:

  - ia64:   ia64_pcrel_from_section
  - nds32:  nds32_pcrel_from_section
  - tic6x:  tic6x_pcrel_from_section
  - v850:   v850_pcrel_from_section
  - visium: visium_pcrel_from_section

The ports could be switched to the generic function name if desired.


2020-XX-XX  Gunther Nikl  <gnikl@justmail.de>

	* tc.h (md_pcrel_from_section): Add prototype.
	* config/tc-aarch64.h (md_pcrel_from_section): Remove prototype.
	* config/tc-arc.h (md_pcrel_from_section): Likewise.
	* config/tc-arm.h (md_pcrel_from_section): Likewise.
	* config/tc-avr.h (md_pcrel_from_section): Likewise.
	* config/tc-bfin.h (md_pcrel_from_section): Likewise.
	* config/tc-bpf.h (md_pcrel_from_section): Likewise.
	* config/tc-csky.h (md_pcrel_from_section): Likewise.
	* config/tc-d10v.h (md_pcrel_from_section): Likewise.
	* config/tc-d30v.h (md_pcrel_from_section): Likewise.
	* config/tc-epiphany.h (md_pcrel_from_section): Likewise.
	* config/tc-fr30.h (md_pcrel_from_section): Likewise.
	* config/tc-frv.h (md_pcrel_from_section): Likewise.
	* config/tc-iq2000.h (md_pcrel_from_section): Likewise.
	* config/tc-lm32.h (md_pcrel_from_section): Likewise.
	* config/tc-m32c.h (md_pcrel_from_section): Likewise.
	* config/tc-m32r.h (md_pcrel_from_section): Likewise.
	* config/tc-mcore.h (md_pcrel_from_section): Likewise.
	* config/tc-mep.h (md_pcrel_from_section): Likewise.
	* config/tc-metag.h (md_pcrel_from_section): Likewise.
	* config/tc-microblaze.h (md_pcrel_from_section): Likewise.
	* config/tc-mmix.h (md_pcrel_from_section): Likewise.
	* config/tc-moxie.h (md_pcrel_from_section): Likewise.
	* config/tc-msp430.h (md_pcrel_from_section): Likewise.
	* config/tc-mt.h (md_pcrel_from_section): Likewise.
	* config/tc-or1k.h (md_pcrel_from_section): Likewise.
	* config/tc-ppc.h (md_pcrel_from_section): Likewise.
	* config/tc-rl78.h (md_pcrel_from_section): Likewise.
	* config/tc-rx.h (md_pcrel_from_section): Likewise.
	* config/tc-s390.h (md_pcrel_from_section): Likewise.
	* config/tc-sh.h (md_pcrel_from_section): Likewise.
	* config/tc-xc16x.h (md_pcrel_from_section): Likewise.
	* config/tc-xstormy16.h (md_pcrel_from_section): Likewise.

diff --git a/gas/config/tc-aarch64.h b/gas/config/tc-aarch64.h
index e3fd68818f..fad4da1ded 100644
--- a/gas/config/tc-aarch64.h
+++ b/gas/config/tc-aarch64.h
@@ -255,7 +255,6 @@ extern void aarch64_after_parse_args (void);
 
 #define MD_PCREL_FROM_SECTION(F,S) md_pcrel_from_section(F,S)
 
-extern long md_pcrel_from_section (struct fix *, segT);
 extern void aarch64_frag_align_code (int, int);
 extern const char * elf64_aarch64_target_format (void);
 extern int aarch64_force_relocation (struct fix *);
diff --git a/gas/config/tc-arc.h b/gas/config/tc-arc.h
index b8eee4fb05..2aa61e0ef8 100644
--- a/gas/config/tc-arc.h
+++ b/gas/config/tc-arc.h
@@ -101,7 +101,6 @@ extern const char *arc_target_format;
    instruction, plus the address of the PC relative fixup.  The latter
    can be calculated as fixp->fx_where +
    fixp->fx_frag->fr_address.  */
-extern long md_pcrel_from_section (struct fix *, segT);
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
 
 /* [ ] is index operator.  */
diff --git a/gas/config/tc-arm.h b/gas/config/tc-arm.h
index c01223fa6d..5e32eac637 100644
--- a/gas/config/tc-arm.h
+++ b/gas/config/tc-arm.h
@@ -340,7 +340,6 @@ struct arm_segment_info_type
 
 #define MD_PCREL_FROM_SECTION(F,S) md_pcrel_from_section(F,S)
 
-extern long md_pcrel_from_section (struct fix *, segT);
 extern void arm_frag_align_code (int, int);
 extern void arm_validate_fix (struct fix *);
 extern const char * elf32_arm_target_format (void);
diff --git a/gas/config/tc-avr.h b/gas/config/tc-avr.h
index 1920873ec5..154bf8ad7d 100644
--- a/gas/config/tc-avr.h
+++ b/gas/config/tc-avr.h
@@ -136,7 +136,6 @@ extern int avr_force_relocation (struct fix *);
    of a PC relative instruction is the next instruction, so this
    macro would return the length of an instruction.  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* The number of bytes to put into a word in a listing.  This affects
    the way the bytes are clumped together in the listing.  For
diff --git a/gas/config/tc-bfin.h b/gas/config/tc-bfin.h
index c4b15075ac..b9bc06bd73 100644
--- a/gas/config/tc-bfin.h
+++ b/gas/config/tc-bfin.h
@@ -68,7 +68,6 @@ extern int bfin_force_relocation (struct fix *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* Values passed to md_apply_fix3 don't include symbol values.  */
 #define MD_APPLY_SYM_VALUE(FIX) 0
diff --git a/gas/config/tc-bpf.h b/gas/config/tc-bpf.h
index 5f50a6594f..5765833997 100644
--- a/gas/config/tc-bpf.h
+++ b/gas/config/tc-bpf.h
@@ -41,7 +41,6 @@
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* We don't need to handle .word strangely.  */
 #define WORKING_DOT_WORD
diff --git a/gas/config/tc-csky.h b/gas/config/tc-csky.h
index f982475c85..e39e106de6 100644
--- a/gas/config/tc-csky.h
+++ b/gas/config/tc-csky.h
@@ -91,7 +91,6 @@ struct tls_addend
 extern const relax_typeS csky_relax_table [];
 
 extern void md_csky_end (void);
-extern long md_pcrel_from_section (fixS *, segT);
 extern void csky_cons_fix_new (fragS *,
 			       unsigned int off,
 			       unsigned int len,
diff --git a/gas/config/tc-d10v.h b/gas/config/tc-d10v.h
index da6dcc74ba..fcd16744e0 100644
--- a/gas/config/tc-d10v.h
+++ b/gas/config/tc-d10v.h
@@ -21,6 +21,8 @@
 
 #define TC_D10V
 
+struct fix;
+
 #define TARGET_BYTES_BIG_ENDIAN 1
 
 /* The target BFD architecture.  */
@@ -30,8 +32,6 @@
 
 /* Call md_pcrel_from_section, not md_pcrel_from.  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-struct fix;
-long md_pcrel_from_section (struct fix *, segT);
 
 /* Permit temporary numeric labels.  */
 #define LOCAL_LABELS_FB 1
diff --git a/gas/config/tc-d30v.h b/gas/config/tc-d30v.h
index 65a7ec6c44..0454d44ddf 100644
--- a/gas/config/tc-d30v.h
+++ b/gas/config/tc-d30v.h
@@ -29,8 +29,6 @@
 #define md_operand(x)
 
 /* Call md_pcrel_from_section, not md_pcrel_from.  */
-struct fix;
-extern long md_pcrel_from_section (struct fix *, segT);
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
 
 /* Permit temporary numeric labels.  */
diff --git a/gas/config/tc-epiphany.h b/gas/config/tc-epiphany.h
index 19f5b13520..2f6c2cccf7 100644
--- a/gas/config/tc-epiphany.h
+++ b/gas/config/tc-epiphany.h
@@ -48,7 +48,6 @@
 #define tc_fix_adjustable(FIX) epiphany_fix_adjustable (FIX)
 extern bfd_boolean epiphany_fix_adjustable (struct fix *);
 
-extern long md_pcrel_from_section (struct fix *, segT);
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP,SEC)
 
 #define TC_HANDLES_FX_DONE
diff --git a/gas/config/tc-fr30.h b/gas/config/tc-fr30.h
index a633f1eedc..8169d6887f 100644
--- a/gas/config/tc-fr30.h
+++ b/gas/config/tc-fr30.h
@@ -50,7 +50,6 @@ extern bfd_boolean fr30_fix_adjustable (struct fix *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* For 8 vs 16 vs 32 bit branch selection.  */
 #define TC_GENERIC_RELAX_TABLE md_relax_table
diff --git a/gas/config/tc-frv.h b/gas/config/tc-frv.h
index f43376cc2a..444b26b6e4 100644
--- a/gas/config/tc-frv.h
+++ b/gas/config/tc-frv.h
@@ -76,7 +76,6 @@ void frv_frob_label (symbolS *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* After all of the symbols have been adjusted, go over the file looking
    for any relocations that pic won't support.  */
diff --git a/gas/config/tc-iq2000.h b/gas/config/tc-iq2000.h
index ad098e311f..31ed49f3c6 100644
--- a/gas/config/tc-iq2000.h
+++ b/gas/config/tc-iq2000.h
@@ -62,4 +62,3 @@
 extern void         iq2000_frob_file         (void);
 extern bfd_boolean  iq2000_fix_adjustable    (struct fix *);
 extern int          iq2000_force_relocation  (struct fix *);
-extern long         md_pcrel_from_section    (struct fix *, segT);
diff --git a/gas/config/tc-lm32.h b/gas/config/tc-lm32.h
index a0231c0561..930106ff44 100644
--- a/gas/config/tc-lm32.h
+++ b/gas/config/tc-lm32.h
@@ -40,7 +40,6 @@
 #define tc_gen_reloc gas_cgen_tc_gen_reloc
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
-extern long md_pcrel_from_section (struct fix *, segT);
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
 
 extern bfd_boolean lm32_fix_adjustable (struct fix *);
diff --git a/gas/config/tc-m32c.h b/gas/config/tc-m32c.h
index aa38116246..5be71977d6 100644
--- a/gas/config/tc-m32c.h
+++ b/gas/config/tc-m32c.h
@@ -71,7 +67,6 @@ extern void m32c_prepare_relax_scan (fragS *, offsetT *, relax_substateT);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* We need a special version of the TC_START_LABEL macro so that we
    allow the :Z, :S, :Q and :G suffixes to be
diff --git a/gas/config/tc-m32r.h b/gas/config/tc-m32r.h
index d56916b181..c123bdcb19 100644
--- a/gas/config/tc-m32r.h
+++ b/gas/config/tc-m32r.h
@@ -37,7 +37,6 @@ extern const char *m32r_target_format (void);
 #endif
 
 /* Call md_pcrel_from_section, not md_pcrel_from.  */
-long md_pcrel_from_section (struct fix *, segT);
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
 
 /* Permit temporary numeric labels.  */
diff --git a/gas/config/tc-mcore.h b/gas/config/tc-mcore.h
index 370a319496..e4fba15285 100644
--- a/gas/config/tc-mcore.h
+++ b/gas/config/tc-mcore.h
@@ -87,7 +87,6 @@ struct mcore_tc_sy
 #include "write.h"        /* For definition of fixS */
 
 extern void        md_mcore_end           (void);
-extern long        md_pcrel_from_section  (fixS *, segT);
 extern arelent *   tc_gen_reloc           (asection *, fixS *);
 extern int         mcore_force_relocation (fixS *);
 extern bfd_boolean mcore_fix_adjustable   (fixS *);
diff --git a/gas/config/tc-mep.h b/gas/config/tc-mep.h
index 69535bc93f..d3eb3d7702 100644
--- a/gas/config/tc-mep.h
+++ b/gas/config/tc-mep.h
@@ -53,7 +53,6 @@ extern void mep_apply_fix (struct fix *, valueT *, segT);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define tc_frob_file() mep_frob_file ()
 extern void mep_frob_file (void);
diff --git a/gas/config/tc-metag.h b/gas/config/tc-metag.h
index 69016fe3ad..27ed167830 100644
--- a/gas/config/tc-metag.h
+++ b/gas/config/tc-metag.h
@@ -51,7 +51,6 @@ extern int metag_force_relocation (struct fix *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define HANDLE_ALIGN(fragp) metag_handle_align (fragp)
 extern void metag_handle_align (struct frag *);
diff --git a/gas/config/tc-microblaze.h b/gas/config/tc-microblaze.h
index a84e7e4035..35f53a0547 100644
--- a/gas/config/tc-microblaze.h
+++ b/gas/config/tc-microblaze.h
@@ -94,9 +94,6 @@ extern const struct relax_type md_relax_table[];
 # error No target format specified.
 #endif
 
-#include "write.h"        /* For definition of fixS */
-
-extern long      md_pcrel_from_section         (fixS *, segT);
 extern void 	 cons_fix_new_microblaze       (fragS *, int, int,
 						expressionS *,
 						bfd_reloc_code_real_type);
diff --git a/gas/config/tc-mmix.h b/gas/config/tc-mmix.h
index 2f5cf3113e..d9e8599c88 100644
--- a/gas/config/tc-mmix.h
+++ b/gas/config/tc-mmix.h
@@ -168,7 +168,6 @@ extern int mmix_force_relocation (struct fix *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define md_section_align(seg, size) (size)
 
diff --git a/gas/config/tc-msp430.h b/gas/config/tc-msp430.h
index 50feca4888..4fb40eda4b 100644
--- a/gas/config/tc-msp430.h
+++ b/gas/config/tc-msp430.h
@@ -91,8 +91,6 @@
      of a PC relative instruction is the next instruction, so this
      macro would return the length of an instruction.  */
 
-extern long md_pcrel_from_section (struct fix *, segT);
-
 #define LISTING_WORD_SIZE 2
 /*   The number of bytes to put into a word in a listing.  This affects
      the way the bytes are clumped together in the listing.  For
diff --git a/gas/config/tc-mt.h b/gas/config/tc-mt.h
index 54c753a8eb..aacb2873f4 100644
--- a/gas/config/tc-mt.h
+++ b/gas/config/tc-mt.h
@@ -48,7 +48,6 @@ extern void mt_apply_fix (struct fix *, valueT *, segT);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define obj_fix_adjustable(fixP) iq2000_fix_adjustable (fixP)
 extern bfd_boolean mt_fix_adjustable (struct fix *);
diff --git a/gas/config/tc-or1k.h b/gas/config/tc-or1k.h
index 6dce33a1f1..0242dd480f 100644
--- a/gas/config/tc-or1k.h
+++ b/gas/config/tc-or1k.h
@@ -50,7 +50,6 @@ extern bfd_boolean or1k_fix_adjustable (struct fix *);
 #define tc_fix_adjustable(FIX) or1k_fix_adjustable (FIX)
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
-extern long md_pcrel_from_section (struct fix *, segT);
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
 
 /* For 8 vs 16 vs 32 bit branch selection.  */
diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index 4df7982fcf..bfe61294da 100644
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -297,7 +297,6 @@ extern void ppc_frob_label (symbolS *);
 
 /* call md_pcrel_from_section, not md_pcrel_from */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define md_parse_name(name, exp, mode, c) ppc_parse_name (name, exp)
 extern int ppc_parse_name (const char *, struct expressionS *);
diff --git a/gas/config/tc-rl78.h b/gas/config/tc-rl78.h
index f69458db8d..d0680ba682 100644
--- a/gas/config/tc-rl78.h
+++ b/gas/config/tc-rl78.h
@@ -58,7 +58,6 @@ extern void rl78_frag_init (fragS *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* RL78 doesn't have a 32 bit PCREL relocations.  */
 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
diff --git a/gas/config/tc-rx.h b/gas/config/tc-rx.h
index 1448c64fdb..0bb25e8bd3 100644
--- a/gas/config/tc-rx.h
+++ b/gas/config/tc-rx.h
@@ -70,7 +70,6 @@ extern void rx_frag_init (fragS *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* RX doesn't have a 32 bit PCREL relocations.  */
 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
diff --git a/gas/config/tc-s390.h b/gas/config/tc-s390.h
index 0f54f5a8c8..d9bc231a84 100644
--- a/gas/config/tc-s390.h
+++ b/gas/config/tc-s390.h
@@ -75,7 +75,6 @@ extern int target_big_endian;
 
 /* call md_pcrel_from_section, not md_pcrel_from */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define md_operand(x)
 
diff --git a/gas/config/tc-sh.h b/gas/config/tc-sh.h
index d7dd764d24..2526332233 100644
--- a/gas/config/tc-sh.h
+++ b/gas/config/tc-sh.h
@@ -87,7 +87,6 @@ extern int sh_force_relocation (struct fix *);
    && sh_relax && SWITCH_TABLE (FIX))
 
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 /* SH_COUNT relocs are allowed outside of frag.
    The target is also buggy and sets fix size too large for other relocs.  */
diff --git a/gas/config/tc-xc16x.h b/gas/config/tc-xc16x.h
index 032f47a2f7..c210b6e10b 100644
--- a/gas/config/tc-xc16x.h
+++ b/gas/config/tc-xc16x.h
@@ -55,6 +55,5 @@ extern void tc_reloc_mangle (struct fix *, struct internal_reloc *, bfd_vma);
 #define LISTING_HEADER "Infineon XC16X GAS "
 #define NEED_FX_R_TYPE 1
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define md_operand(x)
diff --git a/gas/config/tc-xstormy16.h b/gas/config/tc-xstormy16.h
index d08fa90a04..8d7231bce9 100644
--- a/gas/config/tc-xstormy16.h
+++ b/gas/config/tc-xstormy16.h
@@ -54,7 +54,6 @@ extern int xstormy16_force_relocation (struct fix *);
 
 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
 
 #define TC_CONS_FIX_NEW xstormy16_cons_fix_new
 extern void xstormy16_cons_fix_new (fragS *f, int, int, expressionS *,
diff --git a/gas/tc.h b/gas/tc.h
index 8be65fdc18..da1738d67a 100644
--- a/gas/tc.h
+++ b/gas/tc.h
@@ -54,6 +54,9 @@ void    md_create_short_jump (char *, addressT, addressT, fragS *, symbolS *);
 #ifndef md_pcrel_from
 long    md_pcrel_from (fixS *);
 #endif
+#ifndef md_pcrel_from_section
+long    md_pcrel_from_section (fixS *, segT);
+#endif
 #ifndef md_operand
 void    md_operand (expressionS *);
 #endif

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